BlackRock and Fidelity Tighten Their Grip on the Bitcoin ETF Market

The U.S. spot Bitcoin ETF market is increasingly becoming a two-firm race as BlackRock and Fidelity continue to attract most of the new money flowing into the sector. While more than a dozen asset managers launched spot Bitcoin ETFs in early 2024, recent data shows investors are concentrating their allocations in the industry’s largest funds.

Bitcoin ETF Inflows Continue to Favor Market Leaders

During the first half of 2026, BlackRock’s iShares Bitcoin Trust (IBIT) and Fidelity’s Wise Origin Bitcoin Fund (FBTC) consistently captured the majority of net inflows. On January 14, spot Bitcoin ETFs recorded $840.6 million in net inflows. IBIT attracted $648.4 million, while FBTC added $125.4 million, accounting for more than 90% of the day’s total.

The pattern continued on April 17, when ETFs saw $663.9 million in inflows. BlackRock brought in $284 million and Fidelity added $163.4 million. On May 1, the two funds attracted nearly $500 million of the $629.8 million entering the market.

Why Institutional Investors Are Choosing IBIT and FBTC

Despite Bitcoin falling roughly 29% since the start of the year and several waves of ETF outflows between mid-May and early June, IBIT and FBTC continued attracting capital. Many financial advisers, hedge funds, family offices and pension consultants prefer large, liquid products backed by trusted firms.

BlackRock’s vast wealth-management network and Fidelity’s strong brokerage platform have helped make their ETFs the preferred choice for Bitcoin exposure.

Smaller Bitcoin ETF Issuers Struggle to Compete

Meanwhile, products from Franklin Templeton, VanEck, Valkyrie and WisdomTree often record only modest inflows. Even funds from Bitwise and Ark now play a smaller role in shaping overall market flows. The trend suggests the Bitcoin ETF industry is evolving into a winner-take-most market where scale, liquidity and distribution networks matter more than ever.